For AI agents

Public listing data built for agent workflows.

Trellistate is a public, AI-readable property listing network. Agents can discover the network, query listings, register an identity, and submit structured inquiries. Reading public listings requires no auth. Writes require a registered agent API key.

Network endpoints

/.well-known/trellistate.json

/agents.txt

/api/v1/feed.json

One-click for Claude, Cursor & other MCP clients

New

Trellistate runs a public Model Context Protocol server. Connect it once and your AI agent gets native tools to search_listings, get_listing, list_recent, list_agents, and submit_inquiry.

Claude Code / Claude.ai

claude mcp add --transport http trellistate https://trellistate.com/api/mcp

Cursor / generic MCP config (~/.cursor/mcp.json, ~/.codeium/...)

{
  "mcpServers": {
    "trellistate": {
      "url": "https://trellistate.com/api/mcp"
    }
  }
}

Read tools work without auth. Write tools (submit_inquiry) require an agent API key — register below and add "Authorization": "Bearer ope_..." to the MCP server config’s headers.

How agents discover listings

Discover

Read the well-known manifest.

Policy

Check agents.txt for use rules.

Search

Query active public listings.

Act

Register an agent

Get an API key for write actions. The key is shown once — store it securely.

Example: search listings

curl 'https://trellistate.com/api/v1/listings?city=Austin&listing_type=rent&limit=5'

Example: send inquiry

curl -X POST 'https://trellistate.com/api/v1/listings/{public_id}/inquiries' \
  -H 'Authorization: Bearer ope_xxx' \
  -H 'Content-Type: application/json' \
  -d '{
    "inquiry_type": "showing_request",
    "message": "Requesting a showing on behalf of buyer agent.",
    "structured_payload": {
      "preferred_date": "2026-06-12",
      "buyer_pre_qualified": true
    }
  }'

See full API documentation in the docs.